Train control for electric accumulator-locomotives.



No. 884,007. PATENTED APR. 7, 1908. O. BOHM. TRAIN CONTROL FOR ELECTRIC AGGUMULATOB LOCOMOTIVES.

APPLIGATION FILED AUG. 6,1907.

2 SHEETS-SHEET 1.

No. 884,007. PATENTED APR. 7; 1908.

0. BUHM. TRAIN CONTROL FOR ELEGTRIG'AOCUMULATOR LOCOMOTIVES.

APPLIGATION FILED AUG. 6.19077.

2 SHEETS-SHEET 2.

OTTO Bonn, or BERLIN, GERMANY.

TRAIN CONTROL FOR ELECTRIC ACCUMULA'IOB-LO'GOH OTI VES.

Specification of Letters Patent. Application filed August e, 1907. Serial No. asmaa;

Patented April fr, 190s.

I i To all whom it ma/ cpncern:

Be it known that I, O'r'ro Bonn, engineer, J a subject of Germany, residing at Berlin, =Ger*-.

many,.have invented new and useful Im:

-provements in Train Control for Electric.

Accumulator-Locomotives, ofjwhich the following is a s ecific'ation;

It is alrea y known toconstruct electric locomotives having current supplied from an outside source and which are tobe used either separately or-coupledtwo or more'to- *gether insuch a manner that when so coupled the control of all the locomotives can be ef fected' from asingle controller.

- he present invention relates .to a control mechanism-for accumulator locomotives, by

means of which the control of any number of locomotives coupled'together can be fiectedfrom a singlec'ontroller in the simples possifl .20

ble m'anner. 'In this arrangement each electric *mecharism comprising a motor and a.

' battery a're'inserted in series and the controllersof the locomotives which have no dilVG'I'S are all'set to full speed.

illustrates diagrammatica ya ra tem; Fig.2 is anrelevation of a trainshowing myinvention applied thereto, 3 is a 3 locomotivejd su 40 t'rucl*:'s".' -If,.-for, instance, the. twotrains W'hichar'e both upon, the side tracks are to be drawnfrom the'crossing I) together to the fillhke view of a single car,fand Fig. 4; 1s adiagram'of thefelectric connection of two locomotives coupled together.

'pl'a 'ce' (shaft), =0. to t e=crossing b, the trainsfcomposed of ;a relatively .large number-of trucksc are drawn by" two. or more. 00 1' led ."lootimotives d.

trac proceedin from the crossing b asingle ces -for movi'ng the trains Upon 1 the side which consist-in -thesefcises of only a few ingplace a, thenv the two locomotives d are coupled and, the trucks 0 of both-trains are attached. By means. of the hereinafter de-" scribed arrangement'of. the locomotives it then becomes ,pos'sibleto operate both lo.co. motives fio'ln a-,single controller," cones quentl'y only a single driver is needed upon Figure-1 of the accomlfanyin drawing way in a mine which is operated according to this sys-' U on'themain track hich 'roceeds from theiill y the main line fron'i. the crossing b to the fill-- in pilaceatocontrolthe'train. r

e electric coupling of he locomotives can for instance take place in "the manner illustrated in Fig. 2 .together'with the mechanical coupling; The electric systems of.

the two locomotives are coupled, consisting each of} a controller e, a motorf, and a battery 9, these areso connected that all these elements are inserted in series andthe. controller e of the locomotive without a driver is permanently fixed-to full s eed. It then becomes poss bleto contro both motorsby only'operating the controller of the leading locomot1ve-1stobe sepa-- rately,'the battery g-is connected with the.

locomotive. .When a motor fin the manner shown in Fig. 3.

- The control of all the motors is preferably jefli'e'cted'byr altering the control resistance only in the leading-locomotive, sothat the electric couplingfbetween the two -locomo-' tivesfneedsonly to be-two-fold;

Fig. 4'is a' diagram of the electric connec- -'.tiono f the two locomotives d, (if coupled to= etherjaccording'uto my invention. Each ocomot1ve/hasacontro1 resistance-e, e, a

motorf, f, and ajbattefy g,:g",-"which are all connected series by means of suitable cou ling, as; .for' -ins tance :byj the flexible cab es 'h, k. dis the l'eading locomotive and. its. control resistance e .is o erat'ed' by driver, whil'e'o'n 'theglocomotiv'e'd there-is 4 no driver and'it's control resistan'ee'ef is er- I mianntly cutout "I claim:

1 '1 a control for'electric accumulator locomotives a plurality of locomotives,

each havin a .controller, a. battery and a motor, "electric couplin s hetween'said loco- -motives,fall' the controllers, motors and bat teries being connected in series, the arrange- ,mentibeing such that the motors con:

trolled by'orily one controller, while all other controllers are.. permanently fixed to full speed, substantially .as'described. I

1 2.--.In a train'control forelectric accumulator; locomotives a plurality of locomotives, each having a controller, a controller resistance, a battery and a motor, two foldelectric couplings between said locomotives, all the controllers, motors and batteries being eoninectedin series, the arrangement bein such;

that the motors are controlled by on y one controller, while all other controllers are permanently fixed to full speed, substantially as described; 

